spectrum

From Wiktionary
Jump to: navigation, search

Pronunciation[change]

  • (Canada), (UK) IPA: /ˈspektrəm/
  • IPA: /ˈspɛktrəm/
  • SAMPA: /"spEktr@m/

Noun[change]

Singular
spectrum

Plural
spectra

A spectrum of colors
  1. A range.
  2. Specifically, a range of colors representing light of various frequencies.
  3. (chemistry) The pattern of absorption or emission of radiation that is made by a substance when it is put in contact with an energy such as radiation, heat, electricity, etc.